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Open SourceAPI Documentation · API Tools
OpenAPI tooling suite by SmartBear: UI, editor, codegen and more.
openapidocumentationapicodegen
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API Documentation · API Tools
OpenAPI tooling suite by SmartBear: UI, editor, codegen and more.
Build & Lint · Frontend
Rust-based TypeScript/JavaScript compiler used by Next.js and friends.
Programming Languages
Official Swift.org open-source project site with docs and downloads.
Native · Mobile Development
Apple's declarative UI framework for all Apple platforms.
State & Forms · Frontend
React Hooks for data fetching with caching and revalidation.
Frameworks · Backend
Mature PHP framework and set of reusable components.
References · Documentation & Learning
The most-starred system design study guide — scalable architectures, trade-offs and exercises, free and open source.
AI Coding Assistants · AI for Developers
Self-hosted AI coding assistant — code completion on your own hardware with your own models, no data leaves.
Icons · Frontend
Over 5,800 free MIT-licensed stroke SVG icons with consistent 24px grid and packages for every framework.
Mobile UI Libraries · Mobile Development
UI and styling toolkit for React Native and web from one optimizing compiler — fast, themeable, typed.
State & Forms · Frontend
Headless utilities: TanStack Query, Table, Router, Form and more.
Data Viz & Charts · Frontend
Headless UI table/grid logic for React, Vue, Solid and Svelte — you own 100% of the markup and styling.
Desktop Apps · Frontend
Build tiny, secure desktop (and mobile) apps with any web frontend.
Practice & Challenges · Documentation & Learning
Free, curated interview prep: algorithms study plans, behavioral questions and resume advice by ex-Facebook engineers.
Queues & Streaming · Database
Durable workflow execution engine — write workflows as code and Temporal handles retries, state and failures.
Unit & Component · Testing
Throwaway Docker containers for reliable integration tests.
Unit & Component · Testing
Test UI the way users interact with it; simple, complete bindings.
Courses & Tutorials · Documentation & Learning
Free, open-source full-stack web development curriculum.
Animation · Frontend
Motion design tool with a visual editor that attaches to JavaScript — keyframe anything on the web.
3D & WebGL · Frontend
The JavaScript 3D library — WebGL scenes, materials, lights and cameras with an enormous ecosystem.
Relational · Database
PostgreSQL extension and cloud for time-series and analytics.
Cheatsheets · Documentation & Learning
Community-maintained, practical examples for every CLI command.
Whiteboards & Diagrams · Design & Prototyping
Beautiful open-source infinite canvas SDK and whiteboard.
Terminals & Shells · Development Environment
Terminal multiplexer for persistent sessions, panes and windows.